CVE-2026-105326

LOW

INFO Priority: 0.01 BB Relevance: 20/100

Published: 2026-10-05 Modified: 2026-11-06 First seen: 2026-11-06 Status: active

Attack Surface

No Interaction

CVSS Vector Breakdown

AV: Local

AC: High

PR: Low

UI: None

S: Unchanged

C: Low

I: None

A: None

Description

An argument injection flaw was found in CUPS. When email notification is configured, the CUPS scheduler accepts printer subscription requests that supply a mailto notify-recipient-uri. The mailto notifier passes the recipient address to the configured sendmail program without ensuring it cannot be interpreted as command-line options. A remote attacker who can reach the CUPS service could supply a crafted recipient value starting with "-" to influence sendmail behavior. Successful exploitation depends on the installed mail transfer agent and CUPS network exposure, and may lead to execution of attacker-controlled commands with the privileges of the CUPS service user.